8 bus termination with terminating resistors, Bus termination with terminating resistors – Festo Контроллеры двигателя SFC-LAC User Manual

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3. Installation

3−23

Festo P.BE−GDCP−SFC−LACI−PB−E N en 0812NH

3.8

Bus termination with terminating resistors

Note
If the SFC−LACI is at the start or end of the field bus
segment, a bus terminator is required.

Fit a bus termination to both ends of a bus segment.

Recommendation:
Use the ready−to−use field bus plugs from Festo for the bus
termination. A suitable resistor network is incorporated in the
housing of this plug (see Fig. 3/5).

Received/transmitted data P
(data cable B)

Received/transmitted data N
(data cable A)

390 ġ

220 ġ

Pin 6: Supply voltage

Pin 5: Data reference potential

Pin 3

Pin 8

120 nH

Fig. 3/5:

Circuit diagram for bus termination network for
cable type A as per ENĂ50170 (switch in Festo
fieldĂbus plug set to ON)